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<H4>POSIX Threads for Windows – REFERENCE - <A HREF="https://sourceforge.net/projects/pthreads4w/">Pthreads4W</A></H4>
<P><A HREF="index.html">Reference Index</A></P>
<P><A HREF="#toc">Table of Contents</A></P>
<H2><A HREF="#toc0" NAME="sect0">Name</A></H2>
<P>pthread_attr_getstacksize, pthread_attr_setstacksize - get and set
the stacksize attribute 
</P>
<H2><A HREF="#toc1" NAME="sect1">Synopsis</A></H2>
<P><B>#include &lt;pthread.h&gt; </B>
</P>
<P><B>int pthread_attr_getstacksize(const pthread_attr_t *restrict</B>
<I>attr</I><B>, size_t *restrict</B> <I>stacksize</I><B>); <BR>int
pthread_attr_setstacksize(pthread_attr_t *</B><I>attr</I><B>, size_t</B>
<I>stacksize</I><B>); </B>
</P>
<H2><A HREF="#toc2" NAME="sect2">Description</A></H2>
<P>The <B>pthread_attr_getstacksize</B> and <B>pthread_attr_setstacksize</B>
functions, respectively, shall get and set the thread creation
<I>stacksize</I> attribute in the <I>attr</I> object. 
</P>
<P>The <I>stacksize</I> attribute shall define the minimum stack size
(in bytes) allocated for the created threads stack. 
</P>
<P><B>PThreads4W</B> defines <B>_POSIX_THREAD_ATTR_STACKSIZE</B> in
pthread.h to indicate that these routines are implemented and may be
used to set or get the stack size.</P>
<P>Default value: 0 (in PThreads4W a value of 0 means the stack
will grow as required)</P>
<H2><A HREF="#toc3" NAME="sect3">Return Value</A></H2>
<P>Upon successful completion, <B>pthread_attr_getstacksize</B> and
<B>pthread_attr_setstacksize</B> shall return a value of 0;
otherwise, an error number shall be returned to indicate the error. 
</P>
<P>The <B>pthread_attr_getstacksize</B> function stores the <I>stacksize</I>
attribute value in <I>stacksize</I> if successful. 
</P>
<H2><A HREF="#toc4" NAME="sect4">Errors</A></H2>
<P>The <B>pthread_attr_setstacksize</B> function shall fail if: 
</P>
<DL>
	<DT><B>EINVAL</B> 
	</DT><DD STYLE="margin-bottom: 0.5cm">
	The value of <I>stacksize</I> is less than {PTHREAD_STACK_MIN} or
	exceeds a system-imposed limit. 
	</DD></DL>
<P>
These functions shall not return an error code of [EINTR]. 
</P>
<P><I>The following sections are informative.</I> 
</P>
<H2><A HREF="#toc5" NAME="sect5">Examples</A></H2>
<P>None. 
</P>
<H2><A HREF="#toc6" NAME="sect6">Application Usage</A></H2>
<P>None. 
</P>
<H2><A HREF="#toc7" NAME="sect7">Rationale</A></H2>
<P>None. 
</P>
<H2><A HREF="#toc8" NAME="sect8">Future Directions</A></H2>
<P>None. 
</P>
<H2><A HREF="#toc9" NAME="sect9">See Also</A></H2>
<P><A HREF="pthread_attr_init.html"><B>pthread_attr_destroy</B>(3)</A>
<B>,</B> <A HREF="pthread_attr_setstackaddr.html"><B>pthread_attr_getstackaddr</B>(3)</A>
<B>,</B> <A HREF="pthread_attr_init.html"><B>pthread_attr_getdetachstate</B>(3)</A>
<B>,</B> <A HREF="pthread_create.html"><B>pthread_create</B>(3)</A> <B>,</B>
the Base Definitions volume of IEEE&nbsp;Std&nbsp;1003.1-2001,
<I>&lt;limits.h&gt;</I>, <I>&lt;pthread.h&gt;</I> 
</P>
<H2><A HREF="#toc10" NAME="sect10">Copyright</A></H2>
<P>Portions of this text are reprinted and reproduced in electronic
form from IEEE Std 1003.1, 2003 Edition, Standard for Information
Technology -- Portable Operating System Interface (POSIX), The Open
Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the
Institute of Electrical and Electronics Engineers, Inc and The Open
Group. In the event of any discrepancy between this version and the
original IEEE and The Open Group Standard, the original IEEE and The
Open Group Standard is the referee document. The original Standard
can be obtained online at <A HREF="http://www.opengroup.org/unix/online.html">http://www.opengroup.org/unix/online.html</A>
. 
</P>
<P>Modified by Ross Johnson for use with <A HREF="https://sourceforge.net/projects/pthreads4w/">Pthreads4W</A>.</P>
<HR>
<P><A NAME="toc"></A><B>Table of Contents</B></P>
<UL>
	<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect0" NAME="toc0">Name</A>
		</P>
	<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect1" NAME="toc1">Synopsis</A>
		</P>
	<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect2" NAME="toc2">Description</A>
		</P>
	<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect3" NAME="toc3">Return
	Value</A> 
	</P>
	<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect4" NAME="toc4">Errors</A>
		</P>
	<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect5" NAME="toc5">Examples</A>
		</P>
	<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect6" NAME="toc6">Application
	Usage</A> 
	</P>
	<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect7" NAME="toc7">Rationale</A>
		</P>
	<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect8" NAME="toc8">Future
	Directions</A> 
	</P>
	<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect9" NAME="toc9">See
	Also</A> 
	</P>
	<LI><P><A HREF="#sect10" NAME="toc10">Copyright</A> 
	</P>
</UL>
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